Invention Grant
US09002017B2 Method and apparatus for key distribution for secure digital cinema presentations
有权
密钥分发方法和设备，用于安全数字电影演示
- Patent Title: Method and apparatus for key distribution for secure digital cinema presentations
- Patent Title (中): 密钥分发方法和设备，用于安全数字电影演示
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Application No.: US12085488Application Date: 2006-09-07
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Publication No.: US09002017B2Publication Date: 2015-04-07
- Inventor: Mark Leroy Walker , Suqing Li , William Gibbens Redmann
- Applicant: Mark Leroy Walker , Suqing Li , William Gibbens Redmann
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Robert B. Levy
- International Application: PCT/US2006/034515 WO 20060907
- International Announcement: WO2007/067235 WO 20070614
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L29/06 ; H04L9/32 ; H04N7/167 ; H04N7/173 ; H04N21/266 ; H04N21/414 ; H04N21/6334 ; H04N21/658
Abstract:
Key distribution within a digital cinema presentation facility (140) occurs according to a retrieval process (200, 300) that provides for automatic retrieval at a scheduled time. The process further includes redundant mechanisms to transfer the necessary keys, in different ways to enable theater personnel to obtain the required key in a variety of different ways.
Public/Granted literature
- US20090196426A1 Method and Apparatus for Key Distribution for Secure Digital Cinema Presentations Public/Granted day:2009-08-06
Information query
